Sorry if this is in the wrong place, I never know where to post this type of thing. In the tracker? But then I'm not sure if it's an issue across all installs. At phpbb.com but then it says don't post bug reports. So here it is.[phpBB Debug] PHP Notice: in file [ROOT]/viewforum.php on line 474: Undefined index: mark_time
EDIT: An update. If I go to 'Load settings' and find '
Enable server-side topic marking:' and set it to 'No', that's when the debug message appears. If I set it to 'Yes, then the debug message is no longer there.